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MODEL BK 8

BACKLASH FREE BELLOWS COUPLING

Flange mounting

Properties: zero backlash and high torsional rigidity easy assembly
A E ISO 4762 Ø B 1 suited for space restricted installations
ISO 4762CGISO 4017 Ø DLGearhead withoutput flange compact design Material: The hubs are made of aluminium, series 300 and 1500 made of steel. Bellows are made of highly flexible, high-grade stainless steel. Intermediate flange made of steel (standard). Design: One side with a clamping hub and a single radial clamping screw ISO 4762. One side with a flange-connection and a seperate intermediate flange.
H7 ØBØD Speed: Up to 10,000 rpm.
Centering diameterHub bolt circle Temperaturerange: -30 to +120° C (3.6 F to 270)
output flangeIntermediate flangeA1 Fit tolerance: On the hub/shaft connection 0.01 to 0.05 mm.
-2 Keyway DIN 6885optional Non standard: Custom designs with varied tolerances, keyways, non-standard material and bellows are available upon request.

Ordering example

BK8 / 15 / 24 / 40 / XX

ModelSeries Bore Ø D1 H7Flange centering diameternon Standard eg. stainless steel

Gearhead with output flange

Gearhead with output flange Hub bolt circle

Model BK 8

Series 15601503001500 Flange centering diameter (mm)40 h763 h780 h7100 h7160 h7Flange bolt circle / thread Ø (mm)31,5 8x M550 8x M663 12x M68012x M812512x M10Max. torque* (Nm)502103807502600Length -2 (mm) Centering diameterGear The bolt circle will be drilled acc. to the gear head
A 48,5677290140Length -2 (mm) A 1 6897101128190Outher diameter (mm)

Mounting and dismounting

B 496682110157Flange diameter (Nm) B 1 63,586108132188Fit length (mm) C 16,52327,53455Inner diameter possiblefrom Ø to Ø H7 (mm) D 12-2814-3519-4224-6050-80Hub bolt circle (mm) 56,57697120170Fastening threads (kg)10 x M410 x M510 x M612 x M616 x M8 Fastening screws ISO 4762 DL 1 x M51 x M81 x M101 x M122 x M20Tightening torque (Nm)84580120470Distance (mm) E Access hole> A2Intermediate flangeFlange G 6,59,5111322,5Approx. weight (kg) I 0,30,712,810Moment of inertia (10 -3 kgm 2 ) J ges 0,150,651,35,545Lateral (mm) 0,150,150,150,180,2Angular (Grad)11111Axial (mm)11,522,53*max. torque transmittable for a short-therm period on max. diameter. Max.value 435/03/07/2.000

Experience and Know-how for your special requirements.

R+W America1120 Tower Lane · Bensenville, IL 60106Phone: 630-521-9911 · Fax: 630-521-0366info@rw-america.com · www.rw-america.com

R+W BK8_USA.indd 222.08.2007 10:19:23 Uhr